{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "trigger": true, "arguments": ["Subject.Population", "Treatment.Route", "Treatment.Drug", "Treatment.Dosage", "Subject.Race", "Subject.Gender", "Subject.Age", "Effect", "Treatment", "Combination.Drug", "Treatment.Duration", "Subject.Disorder", "Treatment.Time_elapsed", "Subject"]}, {"event_type": "potential therapeutic event", "trigger": true, "arguments": ["Combination.Drug", "Treatment.Freq", "Subject.Disorder", "Subject.Age", "Treatment.Route", "Subject.Population", "Treatment.Disorder", "Subject.Gender", "Treatment.Time_elapsed", "Effect", "Treatment.Dosage", "Subject.Race"]}], "input": "In addition, the tachycardia persisted and was repeatedly spontaneously reinitiated for prolonged periods after procainamide."}
{"adverse event": [{"trigger": "after ", "arguments": {"Subject.Population": "NAN", "Treatment.Route": "NAN", "Treatment.Drug": "procainamide", "Treatment.Dosage": "NAN", "Subject.Race": "NAN", "Subject.Gender": "NAN", "Subject.Age": "NAN", "Effect": "tachycardia persisted and was repeatedly spontaneously reinitiated for prolonged periods", "Treatment": "procainamide", "Combination.Drug": "NAN", "Treatment.Duration": "NAN", "Subject.Disorder": "NAN", "Treatment.Time_elapsed": "NAN", "Subject": "NAN"}}], "potential therapeutic event": []}